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Wybrane pełne teksty z tego czasopisma
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Warianty tytułu
Konferencja
Second International Conference on Engineering Rheology ICER 2003
Języki publikacji
Abstrakty
In connection with blood flow in stenosed blood vessels, Ojha and his co-workers have been measured pulsating flows in rigged pipes with a contraction using kerosene. The experiment, however, leaves something to be desired, for example, the pressure fluctuation relevant to the pulsating flow velocity is entirely unknown. To make clear the mechanism of the pulsating flow in the stenosed pipes, the flow is numerically simulated, in this paper, using a finite difference method with CIP scheme. Obtained axial velocity distributions and thickness of separation region are confirmed with Ojha's experimental results. Resultant flow brings about large periodical change of wall stress in the downstream and of pressure at the contraction, respectively, suggesting that the flow behaviour relates closely with arterial diseases.
Rocznik
Tom
Strony
163--167
Opis fizyczny
Bibliogr. 7 poz., tab., wykr.
Twórcy
autor
- University of Warmia and Mazury in Olsztyn, Faculty of Food Sciences Department of process Engineering and Equipment, 10-957 Olsztyn, POLAND
autor
- University of Warmia and Mazury in Olsztyn, Faculty of Food Sciences Department of process Engineering and Equipment, 10-957 Olsztyn, POLAND
Bibliografia
- [1] Benezech T. and Maingonnat J.F. (1994): Characterization of the rheological properties of yogurt A review. - Journal of Food Engineering, vol.21, pp.447-472.
- [2] Barnes H.A., Hutton J.F. and Walters K. (1989): An Introduction to Rheology. - Amsterdam: Elsevier.
- [3] Basak S. and Ramaswamy H. S. (1994): Simultaneous evaluation of shear rate and time dependency of stirred yogurt rheology as influenced by added pectin and strawberry concentrate. - Journal of Food Engineering vol 21 pp.385-393.
- [4] Chen Chao-Hsun and Cheng Chiang-Ho (1998): Micromechanics and apparent viscosities of non-Newtonian fluid suspensions. - Mechanics of Materials, vol.27, pp.177-185.
- [5] Ferguson J. and Kembłowski Z. (1995): Reologia stosowana płynów. Łódź: Marcus.
- [6] Korolczuk J. (1993): Flow behayiour of low solids fresh cheeses. Journal of Dairy Research, vol.60, No.4 pp.593-601.
- [7] Shaker R.R., Jumah R.Y. and Abu- Jdayil B. (2000): Rheological properties of plain yogurt during coagulation process: impact of fat content and treatment of milk.-Journal of Food Engineering, vol.44, pp. 175-180.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPZ2-0005-0038